Pivotally-mounted glass louver



" 7 I. L.-L.AFFE RTY PIVOTALL}! MOUNTED GLASS LOUVERS I 4 Fil y 3. 19232 Sheets-511001, l

5 I FIG. 2

FIG-1 I I INVENTR. Isaac L. Lafferty A TTORNEY.

May 4 192s. 1,583,597

I. L. LAFFERTY PIVOTALLY MOUNTED GLASS LO'UVERS File y 5, 1923 2shuts-sheet 2 INVENTOR. Isaac L. Laffez'y ATTORNEY.

.Pate'pted a... 4, 192a PATENT OFFICE-7 UNITED STATES ISALCL. LAF-FEBTY,OF FBEDONIA, KANSAS.

PIVOTALLY-MOUNTED GLASS IQOUV'ER.

a lication filed my a,

To all whom it Be. it known that I, Isaac L. LArrnR'rY, a citizen of theUnited States, residing at Fredonia, county of Wilson, and State ofKansas, have invented certain new and-useful Improvements inlivotally-Mounted Glass Louvers, of which the following is aspecification, reference being had tothe accompanying drawings, whichform a part of this specification.

M invention relates to glass louvers for win ows or doors;

The object of my invention 1s to provide a glass louver, pivotallymounted and opera provide a translucent glass louver, that can shown inFigs. 1 and 2.

nection.

be closed weather tight, andopened at any an 'le desired forventilation.

lieferring to the drawings, Fig. 1 is a front elevation, Fig. 2 is adetailed side view, parts being removed for convenience ofillustrati'on; Fig. 3 is a detail "of the louver con 1 is the sidecasings of a window frame, 2 is the head casing, 3 is the stool, 4 isthe apron, 5 is the window sill, 6 is the. head and side jambs, 7 is thestops engaging in the grooves of said jambs and against which thelouvers will engage when closed as The said louvers each 9 grooved toreceive the glass 8 and the said frame being U-shaped in construction,the rail 10 of which is rabbeted to receive the a top edge of the glasssnugly of the louver next below making a weatherproof joint therewith. a

The said louver frame has trunnions 12 on each end thereof and in axialalignment with rail 10, the said trunnions function as pivotal bearingsfor each end of the louvers, engagin in apertures in the side jambs ofthe win ow frame, and one of said trunnions being of 'suilicient lengthto ass through the jamb and receive on the en thereof an arm 13, and theopposite end of said am bein pivotally connected to a vertically disposebar 15, 16 is an operating lever pivotedly 1923. Serial No. 649,333.

connected to the bar 15, the said lever having an aperture 18 adapted toengage on one of the lower louver trunnions in operative relation withthe arms 13. The opposite end ofsaid lever 16 is adapted toextendoutward through the casing 1, engaging through a plate having asegmental slot 19, and the outward end-thereof functions as a handle foroscillating the bar 15 which is the medium by which the louvers areopened and closed, the upper edge following the dotted lines A as shownin Fig. 2. 20 is a coil spring positioned on the outwardly extending armof the operating lever, said spring tensioning between pin B and awasher C,

said spring engaging said washer tofrictionally engage edges of thesegmental slot 7 19, so that the louvers when partly opened will remainin such position by reason of the I tensioning means on the arm of theoperating lever. I

Such modifications may be employed as lie within the scope of theappended claims,

and having thus described my invention,-

what I claim as new and desire to secure by Letters Patent is f In apivotally mounted glass louver, the -combination of a frame and aplurality of U-shaped louver frames, said louver frames having a groovetherein to receive a glass louver, glass louvers interposed within thegrooves of said frames, a rabbet in rail 10 of said frames adapted toreceive the upper edge of the glass of the adjacent louver, said .frameshaving trunnions in axial alignment with said frame portion 10, saidtrunnions have ametal frame engaging in apertures in the 'ambs of firstsaid-frame, stops in parallel ignment with said apertures so that theends of said louver frames will engage snugly thereon, arms rigidlymounted on the trunnions at one end of said jam from said louvers, anoperating lever rigidly mounted on one'of saidtrunnions the end of whichis pivotally connected of said -l ouvers, said arms and actuating .meansbe1n positioned on the opposite sideslot, all for the

